Beam BD passes between sides ABC find angle DBC if angle ABC = 63 degrees ABD = 51 degrees.

Given:
angle ABC,
beam BD passes between sides ABC,
angle ABC = 63 degrees,
angle ABD = 51 degrees.
Find the degree measure of the angle DBC -?
Solution:
Consider the angle ABC.
Angle ABC consists of angles ABD and DBC, that is, angle ABC = angle ABD + angle DBC.
Then the angle DBC = angle ABC – angle ABD;
DBC angle = 63 degrees – 51 degrees;
DBC angle = 12 degrees.
Answer: DVS angle = 12 degrees.